430420 ÷ 87 
Let's see how many times 87 fits into 430420.

Step 1:
If we divide 4 by 87, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 87

Going ahead to step 2:
87 can be fit into 43 0 times, resulting in a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Include the next digit (0) from the dividend after 43, then repeat: 430 / 87

Let's proceed to step 3:
The number 87 fits into 430 4 times, leaving a remainder of 82.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 348 from 430 to get 82.
Take the next digit (4) from the dividend and append it to 82, then repeat: 824 / 87

On to step 4:
87 can be fit into 824 9 times, resulting in a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
Subtract 783 from 824 to get 41.
Bring next digit (2) of the dividend behind the 41 and repeat the process: 412 / 87

Going ahead to step 5:
If we divide 412 by 87, we get 4 and a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 494.0
If we subtract 348 from 412, we get 64.
Append the next digit (0) from the dividend to 64 and continue with: 640 / 87

On to step 6:
87 goes into 640 7 times with a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 4947.0
Subtracting 609 from 640 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 7:
87 can be fit into 310 3 times, resulting in a remainder of 49.
Record the quotient 3 as the next digit in the result. 
Result so far: 4947.3
Deduct 261 from 310 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 8:
87 can be fit into 490 5 times, resulting in a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 4947.35
If we subtract 435 from 490, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 9:
87 goes into 550 6 times with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 4947.356
Subtract 522 from 550 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 10:
If we divide 280 by 87, we get 3 and a remainder of 19.
The next digit of our result is 3. 
Result so far: 4947.3563
If we subtract 261 from 280, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 11:
The number 87 fits into 190 2 times, leaving a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 4947.35632
Subtract 174 from 190 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
87 can be fit into 160 1 times, resulting in a remainder of 73.
Write down 1 as next digit of the result. 
Result so far: 4947.356321
Subtracting 87 from 160 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 13:
87 goes into 730 8 times with a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 4947.3563218
Deduct 696 from 730 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 14:
87 goes into 340 3 times with a remainder of 79.
The number 3 becomes the next digit in our result. 
Result so far: 4947.35632183
Subtracting 261 from 340 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

The final result is 4947.35632183 with a remainder of 7.9e-08.